Property in Crete mostly have properties in Agios Nikolaos but they do have a couple of small apartments in Elounda. You could try contacting them.

According to the media, in general in Greece a lot of owners have gone over to using companies like AirBnB for short term lets at much higher prices. That has cut down the number of long term lets available. For example To Spiti Mou only has five properties to let in the whole Lasithi prefecture and three of those are in Siteia. The only one in Elounda is 8 bedrooms and costs €14,200 per month.